I have dependabot enabled in my GitHub repo.
However there is currently no open PR by it.
I in my repo the following message
Dependabot updates are paused We noticed you haven't used Dependabot in a while, so we've paused new pull requests for you. Merge a Dependabot pull request to resume automatically creating Dependabot updates or disable security and version updates. See open Dependabot pull requests
How can I force dependabot to run/scan my repo?
As mentioned by fbiville in reply to Akae Beka yesterday, and to complete Akae Beka's answer: You need to go to: Insights > Dependency Graph > Dependabot, and from there click on "Recent update jobs."
You should then see a "Check for updates" button on that page.
See screenshots of the "Recent update jobs" link and the "Check for updates" button.